The invention discloses a traffic flow prediction method and system based on a space-time large language model, and a medium. The method comprises the steps of obtaining to-be-predicted traffic flow data; constructing a space-time encoder based on the recurrent neural network and the graph neural network, and encoding the to-be-predicted traffic flow data through the space-time encoder to obtain a first space-time feature; performing feature alignment on the first spatial-temporal feature through an alignment module to obtain a second spatial-temporal feature, so that the spatial-temporal encoder and the large language model are aligned in dimension; and obtaining a traffic flow prediction result through a large language model according to the second spatial-temporal characteristics and the constructed action chain instruction. According to the method, the space-time encoder is designed to help the large language model to fully understand and mine complex space-time modes of different scenes, and then the action chain instruction and alignment module is introduced to relieve the illusion of the large language model, so that accurate space-time prediction under the frozen large language model can be realized; the traffic flow prediction method based on the large language model can be widely applied to the technical field of data processing.
本发明公开了一种基于时空大语言模型的交通流预测方法、系统及介质,包括:获取待预测交通流数据;基于循环神经网络和图神经网络构建时空编码器,通过时空编码器对待预测交通流数据进行编码,得到第一时空特征;通过对齐模块对第一时空特征进行特征对齐,得到第二时空特征,以使时空编码器和大语言模型维度对齐;通过大语言模型根据第二时空特征和构建的行动链指令,得到交通流预测结果。本发明设计了时空编码器来帮助大语言模型充分理解与挖掘不同场景复杂的时空模式,再引入行动链指令与对齐模块来缓解大语言模型的幻觉,能够实现冻结大语言模型下准确的时空预测,提高基于大语言模型进行交通流预测的准确性,可广泛应用于数据处理技术领域。
Traffic flow prediction method and system based on space-time large language model, and medium
一种基于时空大语言模型的交通流预测方法、系统及介质
30.05.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung |
Europäisches Patentamt | 2025
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